548 REVISION OF THE AMYCTERIDiE, 



Head flattened in front; external rostral ridges continued back 

 to forehead, basal rostral grooves well marked between external 

 ridges, emargination moderately deep. Eyes large, oval. Man- 

 dibular horns short, subparallel. Prothorax slightly wider than 

 long(6 X 6-5 mm.), widest in front of middle, anterior margin 

 sinuous, no definite median lobe, collar-constriction feeble; 

 median line traceable throughout, widened in middle to form a 

 shallow depression; granulate, granules fine, abraded on disc, 

 distinct on sides, behind, and in front. Elytra elongate, much 

 wider than prothorax(15 x 9*5 mm.), gradually widened to behind 

 middle, thence subparallel to apex; apex abruptly rounded,, 

 mucronate; base widely emarginate, humeral angles not pro- 

 duced; disc foveo-striate, fovese shallow, somewhat irregular, 

 transverse ridges low, not well defined; interstices costate; second,, 

 third, and fifth most prominent, sutural thickened and outturned 

 at base to join third; second, fourth, and sixth not quite reach- 

 ing base, fourth ending in front of posterior declivity. Sides 

 foveo-striate, interstices subcostate. Undersurface: metasternum 

 shallowly concave. Fifth ventral segment deeply and widely 

 excavate, excavation reaching to anterior margin between the 

 fascicles, preanal fossa deep, transverse, marked off in front by a 

 well defined ridge; posterior edge clothed at sides with a fringe 

 of short black hair; fascicles large, broad, moderately far apart 

 (2 mm.), situated within excavation. Forceps strong, moderately 

 long, gradually incurved; laminse rather small, rounded, situated 

 near base, fringed along outer side of attachment with black 

 hair. Legs clothed with black setse intermingled with lighter- 

 coloured scales on tibiae; setse stronger on under side. 



2. Of a shorter, more oval form than ^J. Head and rostrum 

 as in (J, but mandibles simple, not armed; prothorax(5 x 5-5 mm.) 

 much less abraded on disc; elytra (13 x 8 mm.) oval, apex 

 rounded, not mucronate, foveo-striate, fovese very shallow and 

 irregular, interstices costiform, not so prominent as in g; under- 

 surface feebly convex, third and fourth ventral segments longer 

 than in ^, apical segment simple, not excavate, but with a 

 shallow impression on either side. Dimensions: (J, 22*5 x 9-5;- 

 5, 19 X 8 mm. 



